Fix Eclipse project generation when plugins without tags are present
Fix Eclipse project generation when plugins without tags are present

If a plugin is symlinked in the plugins folder, and that plugin does
not have any tags, the `git describe` command fails with:

  fatal: No names found, cannot describe anything

which causes the build to fail. This was broken by change If5e7be8d.

Add the `--always` option on `git describe` so that it will return a
value even when there are no tags.

Change-Id: I3d0c472c9ac469d079626a9df17149422dc5e4e6

Distrotech/gerrit,supriyantomaftuh/gerrit,Seinlin/gerrit,thesamet/gerrit,TonyChai24/test,renchaorevee/gerrit,supriyantomaftuh/gerrit,joshuawilson/merrit,WANdisco/gerrit,hdost/gerrit,netroby/gerrit,TonyChai24/test,WANdisco/gerrit,pkdevbox/gerrit,jackminicloud/test,TonyChai24/test,joshuawilson/merrit,renchaorevee/gerrit,quyixia/gerrit,hdost/gerrit,Seinlin/gerrit,hdost/gerrit,GerritCodeReview/gerrit,netroby/gerrit,GerritCodeReview/gerrit,netroby/gerrit,thesamet/gerrit,supriyantomaftuh/gerrit,gerrit-review/gerrit,jackminicloud/test,gerrit-review/gerrit,gerrit-review/gerrit,quyixia/gerrit,joshuawilson/merrit,jackminicloud/test,Seinlin/gerrit,supriyantomaftuh/gerrit,Distrotech/gerrit,WANdisco/gerrit,joshuawilson/merrit,TonyChai24/test,hdost/gerrit,supriyantomaftuh/gerrit,GerritCodeReview/gerrit,jackminicloud/test,qtproject/qtqa-gerrit,gerrit-review/gerrit,qtproject/qtqa-gerrit,thesamet/gerrit,qtproject/qtqa-gerrit,hdost/gerrit,pkdevbox/gerrit,qtproject/qtqa-gerrit,qtproject/qtqa-gerrit,pkdevbox/gerrit,renchaorevee/gerrit,WANdisco/gerrit,gerrit-review/gerrit,qtproject/qtqa-gerrit,WANdisco/gerrit,hdost/gerrit,gerrit-review/gerrit,qtproject/qtqa-gerrit,pkdevbox/gerrit,quyixia/gerrit,GerritCodeReview/gerrit,GerritCodeReview/gerrit,WANdisco/gerrit,quyixia/gerrit,joshuawilson/merrit,jackminicloud/test,thesamet/gerrit,GerritCodeReview/gerrit,renchaorevee/gerrit,TonyChai24/test,WANdisco/gerrit,Seinlin/gerrit,GerritCodeReview/gerrit,supriyantomaftuh/gerrit,joshuawilson/merrit,quyixia/gerrit,Seinlin/gerrit,MerritCR/merrit,TonyChai24/test,Seinlin/gerrit,netroby/gerrit,joshuawilson/merrit,jackminicloud/test,GerritCodeReview/gerrit,netroby/gerrit,Distrotech/gerrit,gerrit-review/gerrit,MerritCR/merrit,netroby/gerrit,thesamet/gerrit,Seinlin/gerrit,renchaorevee/gerrit,MerritCR/merrit,TonyChai24/test,quyixia/gerrit,renchaorevee/gerrit,thesamet/gerrit,Distrotech/gerrit,supriyantomaftuh/gerrit,renchaorevee/gerrit,quyixia/gerrit,MerritCR/merrit,pkdevbox/gerrit,Distrotech/gerrit,Distrotech/gerrit,hdost/gerrit,Distrotech/gerrit,jackminicloud/test,MerritCR/merrit,pkdevbox/gerrit,thesamet/gerrit,pkdevbox/gerrit,netroby/gerrit,MerritCR/merrit,MerritCR/merrit,joshuawilson/merrit,MerritCR/merrit